Tool for guiding and shaping metal and the like



certain new and are employed in hot metal-work,

. as chrome alloys etc.,

Patented Nov. 17, I925.

T or IcE.

ERNST .G.- HQNES, OI DU'SSELDORF, GERMANY.

TOOL FOR GUIDING AND SHAPING- METAI. AND THE LIKE. K

No Drawing.

To all whom it may concern."

Be it known that I, ERNST G. Home, a

citizen of Germany,

residing at Dusseldorf,

Bleichstr. 16/18, Germany, have invented Tools for Guiding the like, of which fication.

useful Improvements in and Shaping Metal and the following is a specitungsten etc.

This invention relates'to tools for guiding and shaping metal or the like, particularly in rolling processes or mills.

The tools which are used for guiding and shaping metal in rolling processes or mills are necessarily sub amount of'wear and t particularly to piercing of tube rolling mills,

ected to an extraordinary This applies or mandrels ear.

tools guide bars, direction changing members and such other tools as are directly exposed an action of heated metal.

Among the materials that were rst used where they d subjected to the for tools of this kind, was hard ast metal which, however, was soon found to have very small powers of resistance. Steel alloys such such were then used for tools and this material was found to be more satisfactory and superior to the hard cast metal, but even these .tools are quickly worn out and give rise to much annoyance in practice, be replaced etc.

as they must frequently Furthermore,

the irregular Wear due to the irregular stresses on the tools frequently impair tained by them.

s the product ob- The object of this invention is to overcome these drawbacks.

been found by exhaustive a tool consisting of a s ditions of copper (Cu),

To this end it has experiments, that teel alloy with adzilconium (Z) and Application filed June 29, 1925. Serial No. 40,454.-

cobalt (Co) amounting to from 01 up to 3 per cent has extraordinarily increased resistive In a dition to the said substances, the alloy may contain admixtures of materials that improve the quality of the tool material, such for instanceas nickel, chrome,

It has been found that a tool consisting of such an alloy, and which can be formed into the desired shape by casting for example,

has a very much longer life than the tools made of materials hitherto employed; The resistive power of parts and tools which a in a rolling piercing tools re subjected to hot material process, as for example, the

or mandrels employed in pro-.

ducing seamless tubes or the guide members in rolling mills, amounts to several times that of thebest steel tools produced by previous processes.

This novel material has also been found to be highly suitable for tools for guiding and shaping material or metal that is rolled i or drawn in a cold state.

I claim 1. A tool of the character described, composed of a steel alloy containing admixtures of copper, f1'om0.1 to 3 per cent; zlrcomum from 0.1 to 3 per cent; and cobalt from .0.1

'to 3 per cent.

2. A tool of the character described, consisting of a steel alloy contammg copper,

zirconium and 0.1 to 3 per cobalt in proportions of from cent, along with othersub stances such as nickel, chrome and tungsten in the usual percentages which tend to increase its resistive, powers.

y whereof I have afiixed my In testimon signature.

ERNST G. HONES. 

